Support absolute paths for in-context Dockerfilesc5869-dockerfile-abspath

Signed-off-by: Joffrey F <joffrey@docker.com>

1 files changed, 10 insertions, 6 deletions

diff --git a/setup.py b/setup.py
index 271d94f..1153f78 100644
--- a/setup.py
+++ b/setup.py
@@ -9,12 +9,16 @@ import pip
 
 from setuptools import setup, find_packages
 
-if 'docker-py' in [x.project_name for x in pip.get_installed_distributions()]:
-    print(
-        'ERROR: "docker-py" needs to be uninstalled before installing this'
-        ' package:\npip uninstall docker-py', file=sys.stderr
-    )
-    sys.exit(1)
+try:
+    if 'docker-py' in [
+            x.project_name for x in pip.get_installed_distributions()]:
+        print(
+            'ERROR: "docker-py" needs to be uninstalled before installing this'
+            ' package:\npip uninstall docker-py', file=sys.stderr
+        )
+        sys.exit(1)
+except AttributeError:
+    pass
 
 ROOT_DIR = os.path.dirname(__file__)
 SOURCE_DIR = os.path.join(ROOT_DIR)